Memory 3 Sleep Silentnight. A vacuum packed hypoallergenic mattress with a 3cm layer of memory foam and a high density of Miratex foam. Miratex will absorb movement for better weight distribution without any roll together. The 3 zone support system has varied tensions to target areas where pressure builds up. Simply unwrap the mattress and allow it to settle on your bed. Cover may vary. So buy this Memory 3 Sleep Silentnight Now £126.00.